{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "265134428",
    "entityType": "User",
    "nonce": "0xb8fe455e1922eba12bdf88abfcab8e21e2f35b529424ceec3a267010c04f82fd",
    "signature": "0x48ed1978afc5f9bd8290d574b2bf03de97414dedde368c0e80a1ea74a1af0c88633ecc21c0f6c898b2dd03ce5fd2907772cff83759bf4c0f5800965b3ab137b61b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}